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Proceedings Article

Breast imaging with time-reversed ultrasound

[+] Author Affiliations
Lianjie Huang

Los Alamos National Lab.

Nebojsa Duric, Peter Littrup

Karmanos Cancer Institute

Proc. SPIE 6147, Medical Imaging 2006: Ultrasonic Imaging and Signal Processing, 61470I (March 16, 2006); doi:10.1117/12.659845
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From Conference Volume 6147

  • Medical Imaging 2006: Ultrasonic Imaging and Signal Processing
  • Stanislav Emelianov; William F. Walker
  • San Diego, CA | February 11, 2006

abstract

Ultrasonic imaging has the potential to enhance our capability to detect and diagnose breast cancers, but its imaging quality and resolution need to be significantly improved. We make use of the principle of the time-reversal mirror to develop an image-reconstruction method for ultrasonic breast imaging. It reconstructs images of scatterers (e.g., tumors) that generate/scatter ultrasonic waves by backpropagating measured ultrasonic signals into a heterogeneous breast model on computers using the principle of time-reversal mirror. We use solutions of the (two-way) full wave equation and one-way wave equation in heterogeneous media for backpropagation. We found that the one-way wave-equation-based imaging method can produce higher-resolution images than the two-way propagation-based imaging method when the data acquisition aperture is limited (for a linear transducer array). With a full aperture, our imaging results demonstrate that imaging with time-reversed ultrasound can produce high-quality images of the breast.

© (2006) COPYRIGHT SPIE--The International Society for Optical Engineering. Downloading of the abstract is permitted for personal use only.
Citation

Lianjie Huang ; Nebojsa Duric and Peter Littrup
"Breast imaging with time-reversed ultrasound", Proc. SPIE 6147, Medical Imaging 2006: Ultrasonic Imaging and Signal Processing, 61470I (March 16, 2006); doi:10.1117/12.659845; http://dx.doi.org/10.1117/12.659845


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